Unit 5 – Lecture 6. Taxonomy Taxonomy – the branch of bio that studies classification...
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Transcript of Unit 5 – Lecture 6. Taxonomy Taxonomy – the branch of bio that studies classification...
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Unit 5 – Lecture 6
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TaxonomyTaxonomy – the branch of bio that studies
classificationclassification – grouping and naming of
things based on similar characteristics
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TaxonomyTaxonomy – the branch of bio that studies
classificationphylogeny – hypothesized evolutionary
history of an organism based on character similaritiesorganisms are mostly grouped by physical
appearanceDNA technology advances leading to
reworking of hypothesized evolutionary ancestry
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TaxonomyTaxonomy – the branch
of bio that studies classificationphylogeny – hypoth-
esized evolutionary hist-ory of an organism based on character similaritiesphylogenetic tree
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TaxonomyTaxonomy – the branch of bio that studies
classificationphylogeny – hypothesized evolutionary
history of an organism based on character similaritiescladogram – line
grouping of phylogeny based on similar characteristics
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TaxonomistsAristotle [300s bc]– 1st taxonomist
classed into two categories:plants
classed into herbs, shrubs, and trees& animals
classed by habitat
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TaxonomistsLinnaeus [1700s]
grouped organisms by structural similaritiesdeveloped basis for current classification
groups:kingdoms [plant or animal]classesorders
developed binomial nomenclature for organisms using Latin [bi = 2; nom = name]
Panthera pardus
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ClassificationModern divisions of classification:
KingdomPhylumClassOrderFamily GenusSpecies
Kids
PlayingCatchOn
Freeway
Go Splat
The divisions for classification are more broad at the top and get increasingly specific until you reach ONE type of organism which has its own species name [which is made of both the genus and species to avoid confusion].
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KingdomsSix Kingdoms:
AnimaliaPlantaeFungiProtistaEubacteriaArchaebacteria
Animalia
Plantae
Fungi
Protista
Eubacteria & Archaebacteria
[used to be one kingdom: monera]
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Binomial NomenclatureBinomial Nomenclature – literally, a two-name
naming systemeach organism is given a two-part
Genus species nameAbelmoschus esclentus – okraAcer palmatum – Japanese mapleAllium sativum – garlic
Genus starts with uppercase letterspecies starts with lowercase letteralways italicize or underline entire name
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Binomial NomenclatureWhen referring generally to a certain genus
of organisms, represent the multiple species with: sp. – singular for species
orspp. – plural for species
[applies to many in the genus]There are two genera of carpenter bees in the United States, the small carpenter bees, Ceratina spp., and the large carpenter bees, Xylocopa spp.
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HomeworkCh 18.3 – kingdoms & domainsCh 20.1 – characteristics of bacteriaCh 21.1 – characteristics of protistsCh 22.1 – characteristics of fungiCh 23.1 – intro to plantsCh 26.1 – characteristics of animals